"Voortgezet onderwijs." . . "Evaluation." . . "Schulerfolg." . . "Schüler." . . "Educació secundària" . . "Gran Bretanya" . . "Collégiens Angleterre Londres Attitudes." . . "Educación Estudio y enseñanza (Secundaria) Gran Bretaña." . . "Élèves du secondaire Angleterre Londres Attitudes." . . "Enseignement secondaire Aspect social Grande-Bretagne Londres (GB)." . . "Analyse institutionnelle." . . "uddannelse på sekundært niveau" . . "Enseignement secondaire Grande-Bretagne." . . "enseignement secondaire Grande-Bretagne." . "Élèves du secondaire Grande-Bretagne Londres (GB) Attitudes." . . "Persönlichkeitsentwicklung." . . "Höhere Schule." . . "Estudiants" . . "Enseignement secondaire Grande-Bretagne Londres (GB)" . . "Enseñanza superior Gran Bretaña." . . "præstation" . . "High schools students England London Attitudes." . . "Forenede Kongerige" . . "High school students" . . "Fréquentation scolaire Grande-Bretagne Londres (GB)." . . "Großbritannien." . . "Education, Secondary" . . "Sekundarstufe." . . "skole" . . "Entwicklung." . . . . . "Fifteen-thousand hours" . . . . . "Fifteen thousand hours" . . . . . . . "Fifteen thousand hours. Secondary schools and their effects on children" . . . . . . . . . . . . . . . . . . "Fifteen thousand hours" . . . . . . . . . . . "Fifteen thousand hours : secondary schools and their effect on children"@en . . . . . . "Schuleinfluß"@en . . . . "Fifteen thousand hours secondary schools and their effects on children" . . . . . . . "Fifteen thousand hours secondary schools and their effects on children"@en . . . . . . . . . . . . . . . . . "Fifteen Thousand Hours : Secondary schools and their effects on children"@es . . . . . . . . "Fifteen thousand hours : secondary schools and their effects on children"@en . "Fifteen thousand hours : secondary schools and their effects on children" . . "Fifteen Thousand Hours: Secondary Schools and Their Effects on Children" . . "Kind." . . "Persönlichkeit." . . "Écoles secondaires Angleterre Londres." . . "Schule." . . "London." . . "Groot-Brittannië" . . "Pädagogik." . . "Great Britain" . . "Leerlingen." . . "High school students Great Britain." . . "High school students, Great Britain." . "Escoles Administració i organització." . . "Verenigd Koninkrijk van Groot-Brittannië en Noord-Ierland." . . . . "Education, Secondary Great Britain." . . "Education, Secondary, Great Britain." .